I'm reaching, but since family units stuck together to hunt and for protection, and children were likely near their parents when death came, so perhaps it is a

I'm reaching, but since family units stuck together to hunt and for protection, and children were likely near their parents when death came, so perhaps it is a mechanism to avoid potentially destroying/harming (directly or indirectly) any offspring in a final flash of agony-fueled irrational violent rage. The idea is, in other words, that those who somehow went amok near death perhaps reduced their number of offspring, or damaged the family unit (e.g. destroyed their shelters or food), therefore hindering those genes from spreading, therefore the selection pressure to remove this behaviour. How do primates die?